Funny, through my heat exhaustion and retinal damage, I had the thought "I can't go any farther. Even if I were one of the von Trapps fleeing the Nazis, I can't go any farther." And I knew you'd be pleased with the analogy.

Have I inspired you? How flattering! I can't imagine what it will take to learn as an adult. I recently tried to master "Heelys" (sneakers with a wheel in the heel for coasting like roller skates. Kids (who are immortal) make it look very easy) and never got there because of fear of falling. I hope to hear of your success soon ; )